STK600 has two push buttons and three LEDS for special functions and status indication. The following section explains these features. The figure above shows the placement of these functions.
Future versions of AVR Studio may upgrade the master MCU on STK600. AVR Studio will then detect old software versions of STK600 and update the Flash program memory of the master MCU. To do this the user is required to push the PROGRAM button when powering on STK600. AVR studio issues instructions on how to perform the upgrade during the upgrade process.
The red power LED is directly connected to the STK600 main power supply. The power LED is always lit when power is applied to STK600.
The target power LED is lit when voltage applied to the target AVR device is 0.9V or higher.
ORANGE: Busy programming
ORANGE/RED Blinking: Upgrade mode
RED: No board detected.
GREEN: READY
ORANGE Blinking: Wrong combination of routing and socket card.
RED Blinking: VTarget or Aref short circuited.
RED Blinking high frequency: To much current drawn from supply. If powered from USB, try to connect an external supply to DC jack.
During programming the LED has orange color. When the target AVR device is successfully programmed the LED will turn green